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foot/sixel.h

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sixel: initial support This implements basic parsing of sixel data. Lots of limitations and temporary solutions as this is still work-in-progress: * Maximum image size hardcoded to 800x800 * No HLS color format support * Image is always rendered at 0x0 in the terminal
2020-02-21 21:53:23 +01:00
#pragma once
#include "terminal.h"
sixel: application configurable palette size (color count) This implements the CSI escapes for retrieving and (re)setting the palette size.
2020-02-22 14:02:00 +01:00
#define SIXEL_MAX_COLORS 1024u
sixel: do not reset palette after each image A client can re-use the palette between images. Resetting the palette breaks this. Now we initialize the palette on demand, and resets it when the palette size is changed (by the client).
2020-06-10 18:36:54 +02:00
void sixel_fini(struct terminal *term);
sixel: initial support This implements basic parsing of sixel data. Lots of limitations and temporary solutions as this is still work-in-progress: * Maximum image size hardcoded to 800x800 * No HLS color format support * Image is always rendered at 0x0 in the terminal
2020-02-21 21:53:23 +01:00
void sixel_init(struct terminal *term);
void sixel_put(struct terminal *term, uint8_t c);
void sixel_unhook(struct terminal *term);
sixel: add sixel_destroy()
2020-02-22 00:23:19 +01:00
void sixel_destroy(struct sixel *sixel);
sixel: add sixel_delete_at_row and sixel_delete_in_range These are utility functions to erase sixel images that are at the specified row, or in a row range.
2020-02-24 18:39:14 +01:00
sixel: split -> overwrite
2020-06-27 15:29:47 +02:00
/* Deletes all sixels that are touched by the specified row(s). Row
* numbers are relative to the current grid aoffset */
sixel: refactor handling of wrap-around delete- and split regions Handle these on a higher abstraction level. The low level functions that detect sixel intersections now assume the specified rectangle (or line region) does *not* cross the wrap-around. This is ensured by detecting a wrap-around region before hand, and splitting it up into two, non wrapping regions.
2020-06-27 13:56:13 +02:00
void sixel_delete_in_range(struct terminal *term, int row_start, int row_end);
void sixel_delete_at_row(struct terminal *term, int row);
term: erasing characters now splits sixels instead of deleting them
2020-06-27 15:22:31 +02:00
sixel: split -> overwrite
2020-06-27 15:29:47 +02:00
/* Remove sixel data from the specified location. Row numbers are
* relative to the current grid offset */
void sixel_overwrite_by_rectangle(
term: erasing characters now splits sixels instead of deleting them
2020-06-27 15:22:31 +02:00
struct terminal *term, int row, int col, int height, int width);
sixel: split -> overwrite
2020-06-27 15:29:47 +02:00
void sixel_overwrite_by_row(struct terminal *term, int row, int col, int width);
void sixel_overwrite_at_cursor(struct terminal *term);
sixel: application configurable palette size (color count) This implements the CSI escapes for retrieving and (re)setting the palette size.
2020-02-22 14:02:00 +01:00
void sixel_colors_report_current(struct terminal *term);
void sixel_colors_reset(struct terminal *term);
void sixel_colors_set(struct terminal *term, unsigned count);
void sixel_colors_report_max(struct terminal *term);
sixel: application configurable image max width/height
2020-02-22 21:03:24 +01:00
void sixel_geometry_report_current(struct terminal *term);
void sixel_geometry_reset(struct terminal *term);
void sixel_geometry_set(struct terminal *term, unsigned width, unsigned height);
void sixel_geometry_report_max(struct terminal *term);
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